While short-terms effects from migration have received much attention over the years, Florence Jaumotte and her co-authors examine the longer-term impact of migration on the GDP per capita, and hence standards of living, of receiving advanced economies. Carefully addressingthe risk of reverse causality, the paper finds that immigration significantly increases the GDP per capita of host economies, mostly by raising productivity. Both high- and low-skilled migrants can contribute to raise productivity, likely through skill complementarity in the case of lower-skilled migrants. They also find the gains from immigration appear to be broadly shared across the population.